4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Sudarsana Reddy Kalluru <[email protected]> [ Upstream commit 58874c7b246109d8efb2b0099d1aa296d6bfc3fa ] There's a possible race where driver can read link status in mid-transition and see that virtual-link is up yet speed is 0. Since in this mid-transition we're guaranteed to see a mailbox from MFW soon, we can afford to treat this as link down. Fixes: cc875c2e ("qed: Add link support") Signed-off-by: Sudarsana Reddy Kalluru <[email protected]> Signed-off-by: Ariel Elior <[email protected]> Signed-off-by: Michal Kalderon <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/net/ethernet/qlogic/qed/qed_mcp.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c @@ -613,6 +613,7 @@ static void qed_mcp_handle_link_change(s break; default: p_link->speed = 0; + p_link->link_up = 0; } if (p_link->link_up && p_link->speed)
